CN104683322A - Collins CMU (control monitor unit)-4000 avionics device ACARS (Aircraft Communication Addressing And Reporting System) function activating method - Google Patents
Collins CMU (control monitor unit)-4000 avionics device ACARS (Aircraft Communication Addressing And Reporting System) function activating method Download PDFInfo
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Abstract
The invention discloses a Collins CMU (control monitor unit)-4000 avionics device ACARS (Aircraft Communication Addressing And Reporting System) function activating method. An ACARS function of CMU-4000 equipment is activated through an MCDU (Multifunction Control Display Unit) simulator, i.e. at first, hardware connection between the CMU-4000 equipment and the MCDU simulator is realized through a 429 bus; an activating process comprises the steps of establishing a communication negotiation mechanism between the CMU-4000 equipment and the MCDU simulator, and receiving and transmitting uplink and downlink data. After activation, the CMU-4000 can display a received ACARS message from a ground workstation on the MCDU simulator and can also transmit a downlink ACARS message to the ground workstation through a VDR (Voyage Data Recorder), so that complete ACARS air-to-ground communication is realized.
Description
Technical field
The present invention realizes Collins CMU-4000 to navigate material ACARS function activation, and this system simulation aircraft realizes the transmission of complete air-ground interconnection and ACARS message by the DSP equipment at MCDU simulator, CMU-4000 and VDR and ground handling station.
Background technology
Obtain significant progress in the space flight and aviation cause of China, from big country of civil aviaton march toward power of civil aviaton background, the production domesticization of aircraft is also about to realize, and also there is a lot of weak points for the exploration of the communication system on aircraft and research.This patent is conceived to the communication mechanism between CMU-4000 and the MCDU on aircraft, by the ACARS function using MCDU simulator to activate CMU-4000, thus probe into communication negotiation mechanism concrete between CMU-4000 and MCDU and reciprocal process, for it realizes production domesticization based theoretical.
Summary of the invention
Collins CMU-4000 Aerial Electronic Equipment ACARS function activation method is activated the ACARS function of CMU-4000, first the signal wiring between CMU-4000 and MCDU simulator is realized by 429 buses: on CMU-4000, have two pieces of control panels, first the link of the power supply pin of CMU-4000 is got up: P1 with P2 plate No. 88 pins are connected with 28VDC forward voltage, P1 with P2 plate No. 87 pins are connected with the ground of 28VDC, and be connected with the ground of the housing of CMU-4000 by P2 plate No. 85 pins, thus ensure that CMU-4000 can activate, when use 429 board communicates is that 1 passage is sent out, 2 passages are received, each passage has AB two ports, the signal of transmission phase difference 180 degree, AB port all will connect, 4 interfaces altogether, respectively by 21 of AB two ports of 1 passage and the P2 of CMU, No. 22 pins are connected, AB two ports of 2 passages are connected with the port of MCDU simulator, by 35 of AB two ports of 2 passages in another one 429 communication card and the P2 of CMU, No. 36 pins are connected, and AB two ports of 1 passage are connected with the port of MCDU simulator, realize the signal wiring of CMU-4000 and MCDU simulator.
Activation comprises the foundation of communication negotiation mechanism between CMU-4000 and MCDU simulator, and the transmitting-receiving of up-downgoing data.First MCDU simulator is told its device number of CMU-4000 by Label377 and is reported the health status of its 7 ports and optional port by real-time status message (Label270), and CMU-4000 is after the system label message receiving the transmission of MCDU simulator, tell MCDU simulator its SAL by system address tag message (Label172), thus the data communication starting to set up between MCDU simulator is machine-processed; Receiving the system label message of CMU-4000, after determining its SAL, MCDU simulator sends apply for information (ENQ), and ENQ message has two functions, and in the process of initialization menu, the 17-20 position of ENQ message is set to title request; After determining menu header content, MCDU simulator can send apply for information again, and request sends content of pages, and the 17-20 position of apply for information is set to content of pages request; And when being switched to CMU-4000 from current sub-system, MCDU simulator sends apply for information to CMU-4000, apply for information comprises SAL, MAL and the content of pages request of CMU-4000; When CMU-4000 request will send data to MCDU simulator, first send RTS word to it, normal request coding and the menu text coding of RTS word are respectively used to the transmission of message and the transmission of menu header content, the content of concrete RTS word is relevant with the specific inquiry content that ENQ sends, when menu is set up in the initialization of MCDU simulator, CMU-4000 responds the ENQ word that MCDU simulator sends, and RTS word is encoded to menu text request; After display CMU-4000 related interfaces determined by MCDU simulator, CMU-4000 responds the ENQ word that MCDU simulator sends, and RTS word is encoded to normal request; After MCDU simulator receives the RTS that CMU-4000 sends, MCDU simulator sends the response of CTS word in 200 milliseconds; CMU-4000 receive CTS response after, start to transmit data, STX word is the banner word of record cell, for CMU-4000 transmit information time first character, record cell is not at the end of message is, and the last character of record cell is ETX word; MCDU simulator sends ACK word and responds, when record cell is at message end, the last character of record cell is EOT word, MCDU simulator sends ACK word responsively, after CMU-4000 receives ACK word, indicate that this data transfer completes, achieve the ACARS function activation to CMU-4000, after activating, the ACARS message from ground handling station received both can be presented on MCDU simulator by CMU-4000, again can by VDR earthward work station send descending ACARS message, thus realize complete ACARS earth-space communication.
Accompanying drawing explanation
Fig. 1 specifically describes between CMU-4000 and MCDU simulator and sets up mutual complete procedure, if wherein MCDU simulator receives 172 of CMU-4000 transmission for continuous 3 seconds, show subsystem fault-free, otherwise subsystem has fault.After connecting, the every 10s ~ 60s of MCDU simulator sends out an ENQ (menu text request), and CMU-4000 carries out respective response to prove the active of itself to it.
Fig. 2 is that CMU-4000 and MCDU simulator is set up alternately in practical operation, the concrete menu interface that MCDU simulator shows, according to practical operation, and corresponding data in the data transmission procedure that itself CMU-4000 and MCDU simulator is concrete:
CMU-4000>>RTS1200019
CMU-4000>>CNTR01910190
CMU-4000>>DATAA04C4490：：DL
CMU-4000>>DATA20202090：：
CMU-4000>>CNTR01FD0190
CMU-4000>>DATAC5523C90：：<RE
CMU-4000>>DATAD2555490：：TUR
CMU-4000>>DATA80004E90：：N
CMU-4000>>CNTR017D0990
CMU-4000>>DATA3A323090：：02：
CMU-4000>>DATA00383090：：08
CMU-4000>>CNTR817C0990
CMU-4000>>DATAA04F4E90：：NO
CMU-4000>>DATACD4F4390：：COM
CMU-4000>>DATA80004D90：：M
CMU-4000>>CNTR819D1290
CMU-4000>>DATACE4F4390：：CON
CMU-4000>>DATAC7494690：：FIG
CMU-4000>>DATA00002A90：：*
CMU-4000>>CNTR01910790
CMU-4000>>DATAC34F4190：：AOC
CMU-4000>>DATAC54D2090：：ME
CMU-4000>>DATA80554E90：：NU
CMU-4000>>CNTR81F30190
CMU-4000>>DATA52503C90：：<PR
CMU-4000>>DATA4C464590：：EFL
CMU-4000>>DATA48474990：：IGH
CMU-4000>>DATA00005490：：T
CMU-4000>>CNTR81F50190
CMU-4000>>DATA4E453C90：：<EN
CMU-4000>>DATAD54F5290：：ROU
CMU-4000>>DATA80455490：：TE
CMU-4000>>CNTR01F70190
CMU-4000>>DATA4F503C90：：<P0
CMU-4000>>DATAC6545390：：STF
CMU-4000>>DATAC7494C90：：LIG
CMU-4000>>DATA00544890：：HT
CMU-4000>>CNTR01F31190
CMU-4000>>DATA544C4690：：FLT
CMU-4000>>DATA4F4C2090：：LO
CMU-4000>>DATA003E4790：：G>
CMU-4000>>CNTR81F71190
CMU-4000>>DATAD0455290：：REP
CMU-4000>>DATA54524F90：：ORT
CMU-4000>>DATA003E5390：：S>
CMU-4000>>CNTR81F91090
CMU-4000>>DATA51455290：：REQ
CMU-4000>>DATA53455590：：UES
CMU-4000>>DATABE535490：：TS>
CMU-4000>>CNTR81FB0F90
CMU-4000>>DATA53494D90：：MIS
CMU-4000>>DATACD204390：：CM
CMU-4000>>DATA554E4590：：ENU
CMU-4000>>DATA00003E90：：>
CMU-4000>>EOT84010090
MCDU simulator >>ACK860100C4
CMU-4000>>RTS12000190
MCDU simulator >>CTS137F00C4
CMU-4000>>STX82012290
CMU-4000>>CNTR01F51190
CMU-4000>>DATA53544190：：ATS
CMU-4000>>DATA4F4C2090：：LO
CMU-4000>>DATA003E4790：：G>
CMU-4000>>CNTR81F90190
CMU-4000>>DATACC433C90：：<CL
CMU-4000>>DATACB434F90：：0CK
CMU-4000>>DATAC5532090：：SE
CMU-4000>>DATA00005490：：T
CMU-4000>>CNTR01FB0190
CMU-4000>>DATAC5543C90：：<TE
CMU-4000>>DATAA0484390：：CH
CMU-4000>>DATA4E454D90：：MEN
CMU-4000>>DATA80005590：：U
CMU-4000>>CNTR01910190
CMU-4000>>DATAA04C4490：：DL
CMU-4000>>DATA20202090：：
CMU-4000>>CNTR01FD0190
CMU-4000>>DATAC5523C90：：<RE
CMU-4000>>DATAD2555490：：TUR
CMU-4000>>DATA80004E90：：N
CMU-4000>>CNTR017D0990
CMU-4000>>DATA3A323090：：02：
CMU-4000>>DATA00383090：：08
CMU-4000>>CNTR817C0990
CMU-4000>>DATAA04F4E90：：NO
CMU-4000>>DATACD4F4390：：COM
CMU-4000>>DATA80004D90：：M
CMU-4000>>CNTR819D1290
CMU-4000>>DATACE4F4390：：CON
CMU-4000>>DATAC7494690：：FIG
CMU-4000>>DATA00002A90：：*
CMU-4000>>EOT84010090
MCDU simulator >>ACK860100C4
The DSP that Fig. 3 shows CMU-4000 and ground sets up and contacts rear CMU-4000 and enter the POACOMM stage, pilot inputs the menu instructions of needs on MCDU simulator interface, CMU-4000 is passed to by 429 communication buss, CMU-4000 is connected by VDR and DSP base station, ground, MCDU simulator contents displayed on interface when instruction being passed to ground handling station.
Specific implementation method
1, CMU-4000 and MCDU simulator sets up two-way communication data signal wiring by 429 buses
CMU-4000 afterbody pin linking status: CMU-4000 has two pieces of control panels, first the link of the power supply pin of CMU-4000 is got up, P1 with P2 plate No. 88 pins are connected with 28VDC forward voltage, P1 with P2 plate No. 87 pins are connected with the ground of 28VDC, and be connected with the ground of the housing of CMU-4000 by P2 plate No. 85 pins, thus ensure that CMU-4000 can activate.The two-way communication of MCDU simulator analogue system and CMU-4000 is completed by 429 communication cards.Ours is that 1 passage is sent out, and 2 passages are received, and each passage has AB two ports, the signal of transmission phase difference 180 degree.AB port all will connect, altogether 4 interfaces.Respectively AB two ports of 1 passage are connected with 21, No. 22 pins of the P2 of CMU-4000, AB two ports of 2 passages are connected with the port of MCDU simulator analogue system.AB two ports of 2 passages in another one 429 communication card are connected with 35, No. 36 pins of the P2 of CMU-4000, and AB two ports of 1 passage are connected with the port of MCDU simulator analogue system, then carry out the foundation of communication negotiation mechanism.
Use the two-way communication that 429 communication cards realize between CMU-4000 and MCDU simulator in this patent, the timeliness that communicates and rapidity can be ensured, the accuracy communicated can be ensured again.
2, communication negotiation mechanism set up by CMU-4000 and MCDU simulator, carries out protocol negotiation, concrete reciprocal process and interface specification as follows:
(1) MCDU simulator tells its device number of CMU-4000 by Label377, and its transmission rate is 1/sec
Message format:
Concrete data: 8004E5FF
(2) health status of its 7 ports and optional port reported by MCDU simulator by real-time status message (Label270), and its transmission rate is 2/sec.
Message format:
Concrete data: 800000B8
(3) CMU-4000 is after the system label message receiving the transmission of MCDU simulator, tells MCDU simulator its SAL by system address tag message (Label172), thus the data communication starting to set up between MCDU simulator is machine-processed.
Message format:
Concrete data: 8000237A
(4) apply for information (ENQ), ENQ message has two functions, and concerning MCDU simulator, when initialization menu is with the different subset menu of switching, can use ENQ message, detailed directions is as follows:
1) after MCDU simulator powers up, in the process of initialization menu, after MCDU simulator receives an effective system address tag message, MCDU simulator should send ENQ message.In this case, the 17-20 position of ENQ message is set to title request, and the normal response of CMU-4000 is for sending header message, and the 17-20 position of the RTS word of header message is also title request.After determining menu header content, MCDU simulator can send apply for information again, and request sends content of pages, and the 17-20 position of apply for information is set to content of pages request.
2), when being switched to CMU-4000 from current sub-system, MCDU simulator sends apply for information to CMU-4000, and apply for information comprises SAL, MAL and the content of pages request of CMU-4000.Under normal circumstances, CMU-4000 should with Page messages in 200 milliseconds.
Message format:
Concrete data: 850109C4
(5) RTS word is used in CMU-4000 request when will send data to MCDU simulator, normal request coding and the menu text coding of RTS word are respectively used to the transmission of message and the transmission of menu header content, the content of concrete RTS word is relevant with the specific inquiry content that ENQ sends, have following several situation, under different situations, the coding of function field (17-20bit) is also not quite similar.
1) when menu is set up in the initialization of MCDU simulator, CMU-4000 responds the ENQ word that MCDU simulator sends, and function field is encoded to menu text request.
2) after display CMU-4000 related interfaces determined by MCDU simulator, CMU-4000 responds the ENQ word that MCDU simulator sends, and function field is encoded to normal request.
RTS word format
Concrete data: 92010190
(6) CTS word, when MCDU simulator receives " RTS " that CMU-4000 sends, MCDU simulator should send the response of CTS word in 200 milliseconds.When CMU-4000 communicates with CMU-4000 as state of activation, CTS word comprise maximum can receiving record device quantity and subsystem SAL.When CMU-4000 wishes to communicate with CMU-4000 as unactivated state, the display interface handover request (RTS word) that MCDU simulator can use CTS word response subsystem to send.Now, the dominant record digital section of CTS word is set to zero by MCDU simulator.
Message format:
Concrete data: 137F00C4
(7) STX word, " STX " word is the banner word of record cell.CMU-4000 is first character when the information of transmission.
Message format:
Concrete data: 02010490
(8) control word is also called CNTRL word, specify start to fill the display of MCDU simulator starting character position, color, font and line number.
Message format:
Concrete data: 81810190
(9) data word, the data (the filling out 0 of countless certificate) between STX and EOT/ETX word, the input request concrete according to MCDU simulator has operated uploading of the content at respective menu interface.
Message format:
| Bit | Field name | Codomain | Explanation |
| 32 | Parity check | . | |
| 31-25 | CH#3 | ||
| 24 | - | 0 | |
| 23-17 | CH#2 | ||
| 16 | - | 0 | |
| 15-09 | CH#1 | ||
| 08-01 | MAL | . |
Concrete data: 4C443C90
(10) ETX word, when record cell is not in the end of message, the last character of record cell is ETX word.MCDU simulator should send ACK word and respond.The records series field of ETX word can repeat the records series number in STX.
Message format:
| Bit | Field name | Codomain | Explanation |
| 32 | Parity check | . | |
| 31-25 | ETX | 0000011b | |
| 24 | - | 0 | |
| 23-17 | Records series number | ||
| 16-09 | - | 0 | |
| 08-01 | MAL | . |
Concrete data: do not find ETX
(11) EOT word, when record cell is at message end, the last character of record cell is ETX word.Under normal circumstances, MCDU simulator should send ACK word and responds.
Message format:
| Bit | Field name | Codomain | Explanation |
| 32 | Parity check | . | |
| 31-25 | EOT | 0000100b | |
| 24 | - | 0 | |
| 23-17 | A upper recording mechanism | ||
| 16-09 | 0 | ||
| 08-01 | MAL | . |
Concrete data: 84010090
(12) ACK word, after MCDU simulator receives DTD mark EOT word (terminating transmission), ETX word (File Transfer terminates), can reply ACK word to CMU-4000.
Message format:
| Bit | Field name | Codomain | Explanation |
| 32 | Parity check | . | |
| 31-25 | ACK | 0000110b | |
| 24 | - | 0 | |
| 23-17 | Records series number | ||
| 16-9 | - | 0 | |
| 08-01 | SAL | . |
Concrete data: 860100C4
(13) press key message, press key message is by DC1 mark (bit25-31), and response user presses the button on MCDU simulator.Press key message comprises all letter keys, numerical key, function key.Exception, " MCDU simulator Menu " button and when the Line Select Key when main menu mode can not produce press key message.
Message format:
Concrete data: 114100C4
(14) sticky note book message, sticky note book message is that the press key contents that user inputs is returned to MCDU simulator by CMU-4000, is presented in note hurdle.
Message format:
Concrete data: 11C1E190
3, by computer simulation DSP, and use simulation software to complete the intercommunication of VDR and DSP by TCP/IP, realize ACARS earth-space communication.
When the DSP on CMU-4000 and ground set up contact after CMU-4000 enter the POA COMM stage, pilot inputs the menu instructions of needs on MCDU simulator interface, CMU-4000 is passed to by 429 communication buss, CMU-4000 is connected by VDR and DSP base station, ground, instruction is passed to its ACARS message intercommunication of ground handling station to be
CMU-4000 sends Lable Q0, and message content is as follows:
CMU-4000>>：<SOH>2.B-2266<NAK>Q00<STX>S00ACA0000<ETX>j_<DEL>
CMU-4000 sends Lable SA, and message content is as follows:
CMU-4000>>：<SOH>2.B-2266<NAK>SA1<STX>S01ACA00000EV072758V<ETX>？<NULL><DEL>
CMU-4000 sends Lable52, and message content is as follows:
CMU-4000>>：<SOH>2.B-2266<NAK>522<STX>M00ACA0000<ETX>′S<DEL>
4, ground DSP work station receive CMU-4000 send ACARS message after can timely to response, sending after ACARS message passes to CMU-4000 is presented on MCDU simulator panel, and the ACARS message sent as DSP work station in step (3) is as follows:
。
Claims (2)
1. Collins CMU-4000 Aerial Electronic Equipment ACARS function activation method, it is characterized in that being realized by following steps:
(1) two-way communication is carried out by 429 communication cards between CMU-4000 and MCDU simulator;
(2) set up communication negotiation mechanism between CMU-4000 and MCDU simulator, carry out protocol negotiation;
(3) downstream message transmission;
(4) upstream message transmission.
2. require described Collins CMU-4000 Aerial Electronic Equipment ACARS function activation method according to right 1, wherein the feature of each activation is:
Wherein comprise the avionics system of two terminals in step (1), CMU-4000 and MCDU simulator respectively, both sides carry out two-way communication by 429 communication cards, CMU-4000 has two pieces of control panels, first the link of the power supply pin of CMU-4000 is got up: P1 with P2 plate No. 88 pins are connected with 28VDC forward voltage, P1 with P2 plate No. 87 pins are connected with the ground of 28VDC, and be connected with the ground of the housing of CMU-4000 by P2 plate No. 85 pins, thus ensure that CMU-4000 can activate, when use 429 board communicates is that 1 passage is sent out, 2 passages are received, each passage has AB two ports, the signal of transmission phase difference 180 degree, AB port all will connect, 4 interfaces altogether, respectively by 21 of AB two ports of 1 passage and the P2 of CMU, No. 22 pins are connected, AB two ports of 2 passages are connected with the port of MCDU simulator, by 35 of AB two ports of 2 passages in another one 429 communication card and the P2 of CMU, No. 36 pins are connected, and AB two ports of 1 passage are connected with the port of MCDU simulator, thus complete both sides and communicated by 429 boards, then the foundation of communication negotiation mechanism is carried out,
Step (2) is that avionics system CMU-4000 and MCDU simulator both sides set up communication negotiation mechanism, complete data communication process, first MCDU simulator is told its device number of CMU-4000 by Label377 and is reported the health status of its 7 ports and optional port by real-time status message (Label270), and CMU-4000 is after the system label message receiving the transmission of MCDU simulator, tell MCDU simulator its SAL by system address tag message (Label172), thus the data communication starting to set up between MCDU simulator is machine-processed; Receiving the system label message of CMU-4000, after determining its SAL, MCDU simulator sends apply for information (ENQ), and ENQ message has two functions, and in the process of initialization menu, the 17-20 position of ENQ message is set to title request; After determining menu header content, MCDU simulator can send apply for information again, and request sends content of pages, and the 17-20 position of apply for information is set to content of pages request; And when being switched to CMU-4000 from current sub-system, MCDU simulator sends apply for information to CMU-4000, apply for information comprises SAL, MAL and the content of pages request of CMU-4000; When CMU-4000 request will send data to MCDU simulator, first send RTS word to it, normal request coding and the menu text coding of RTS word are respectively used to the transmission of message and the transmission of menu header content, the content of concrete RTS word is relevant with the specific inquiry content of ENQ, when MCDU simulator initialization menu, CMU-4000 responds the ENQ word that MCDU simulator sends, and RTS word is encoded to menu text request; After display CMU-4000 related interfaces determined by MCDU simulator, CMU-4000 responds the ENQ word that MCDU simulator sends, and RTS word is encoded to normal request; After MCDU simulator receives the RTS that CMU-4000 sends, MCDU simulator sends the response of CTS word in 200 milliseconds; CMU-4000 receive CTS response after, start to transmit data, STX word is the banner word of record cell, for CMU-4000 transmit information time first character, record cell is not at the end of message is, and the last character of record cell is ETX word; MCDU simulator sends ACK word responsively, and when record cell is at message end, the last character of record cell is EOT word, and MCDU simulator sends ACK word and responds, and after CMU-4000 receives ACK word, indicates that this data transfer completes;
The transmission of step (3) downstream message is the menu instructions that pilot inputs needs on MCDU simulator interface, CMU-4000 is passed to by 429 communication buss, CMU-4000 is connected by VDR and DSP base station, ground, instruction is passed to ground handling station, time as worked as aircraft standby for takeoff, pilot is when communicating with ground DSP work station, need to report its flight plan, MCDU simulator panel there is AOC menu, flight plan is sent to DSP by button by pilot, after pressing FLN PLAN*, CMU sends Lable80, if under message content:
CMU>>：<SOH>2.B-2266<NAK>800<STX>M07ACA11123L01 FLTPLN 1112/25ZBAA/ZHHH.B-2266<ETX>～<DEL><DEL>
The transmission of step (4) upstream message be exactly ground DSP work station after receiving the ACARS message that CMU-4000 sends can timely to response, sending after ACARS message passes to CMU-4000 is presented on MCDU simulator panel, and the ACARS message sent as ground handling station in step (3) is as follows:
Thus complete the uplink of ACARS message, realize the earth-space communication of ACARS message.
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| US10739949B2 (en) | 2017-10-04 | 2020-08-11 | Airbus Operations (Sas) | Port expansion device for an aircraft |
| CN108055146A (en) * | 2017-12-05 | 2018-05-18 | 中电科航空电子有限公司 | ACARS system data chain protocol stack functional simulation devices and its application |
| CN108055146B (en) * | 2017-12-05 | 2021-02-09 | 中电科航空电子有限公司 | Function simulator of ACARS system data link protocol stack and application thereof |
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